Heated Oxygen Sensor Replacement - Bank 2 Sensor 2

Heated Oxygen Sensor Replacement - Bank 2 Sensor 2

Removal Procedure

Notice: Refer to Oxygen Sensor Notice .


Important:
* Bank 2 on the LH2 engine is the left side of the engine while sitting in the driver seat.

* Sensor 2 is the second sensor down stream from the engine towards the rear of the vehicle.

* A special anti-seize compound is used on the oxygen sensor threads. New service sensors should already have the compound applied to the threads. Coat the threads of a reused sensor with anti-seize compound P/N 5613695 or equivalent.








1. Separate the bank 2, sensor 1 electrical connector assembly (1) from the fuel rail bracket.
2. Disconnect the oxygen sensor electrical connector from the engine wiring harness connector.




3. Separate the bank 2, sensor 2 electrical connector assembly (1) from the fuel rail bracket.
4. Disconnect the oxygen sensor electrical connector from the engine wiring harness connector.




5. Disconnect the evaporative emission (EVAP) hose (3) from the chassis bundle at the front of dash. Position the hose aside.
6. Disconnect the brake booster hose and check valve from the brake booster. Position the hose aside.
7. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair) .




8. Remove the oxygen sensor wire harnesses from the retainer (1) at the rear of the engine.
9. Note the wire routing for reassembly.




10. Gently pull the bank 2 sensor 2 oxygen sensor (2) wire harness and connector down from the engine compartment.
11. Remove the bank 2 sensor 2 oxygen sensor (2) from the exhaust manifold.



Installation Procedure


Notice: Refer to Fastener Notice (Fastener Notice) .





1. Install the bank 2 sensor 2 oxygen sensor (2) to the exhaust manifold.

Tighten the heated oxygen sensor (HO2S) to 42 N.m (31 lb ft).

2. Lower the vehicle.
3. Pull the exhaust sensor electrical connector and wire harness upward to the engine compartment.
4. Install the electrical connector retainer to the electrical connector.
5. Connect both oxygen sensor electrical connectors to the engine wiring harness connectors.




6. Install both oxygen sensor electrical connector assemblies (1, 2) to the fuel rail brackets.




7. Connect the brake booster hose and check valve to the brake booster.
8. Connect the evaporative emission (EVAP) hose (3) to the chassis bundle at the front of dash.
9. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair) .




10. Install the oxygen sensor wire harnesses to the retainer (1) at the rear of the engine. Ensure that the wire harnesses are secure and away from hot exhaust components.
11. Lower the vehicle.